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Ferrat - Versionshistorik
2026-06-24T11:04:07Z
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https://wiki.guldforum.se/w/index.php?title=Ferrat&diff=10199&oldid=prev
Dan Olsson den 25 februari 2013 kl. 12.37
2013-02-25T12:37:12Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versionen från 25 februari 2013 kl. 08.37</td>
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Dan Olsson
https://wiki.guldforum.se/w/index.php?title=Ferrat&diff=7281&oldid=prev
Dan Olsson: 1 version
2013-02-24T14:13:41Z
<p>1 version</p>
<p><b>Ny sida</b></p><div>[[Bild:Ferrate ion.svg|miniatyr|150px|Strukturformeln för en ferratjon.]]<br />
'''Ferrat''' är en [[jon]] med [[kemisk formel|formeln]] FeO<sub>4</sub><sup>2–</sup>. Jonen består av en [[järn]]atom i [[oxidationstillstånd]] +6 och fyra [[syre]]atomer i oxidationstillstånd -2, vilket ger jonen dess totala laddning på -2.<br />
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En ferratförening kan bildas genom att järn oxideras med ett starkt [[oxidationsmedel]] i en [[alkalisk]] miljö. Till exempel kan järn, [[natriumhypoklorit]] (NaClO) och [[natriumhydroxid]] (NaOH) bilda [[natriumferrat]] (Na<sub>2</sub>FeO<sub>4</sub>).<br />
:<math>\rm 3\ NaClO + 2\ NaOH + Fe \rightarrow Na_2FeO_4 + 3\ NaCl + H_2O</math><br />
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Ferrater är bara stabila i alkaliska miljöer. Vid kontakt med H<sup>+</sup>-joner reduceras järnet till oxidationstillstånd +3 varvid jonen sönderfaller till [[järn(III)oxidhydroxid]] och syre.<br />
:<math>\rm FeO_4^{2-} + 2\ H^+ \rightarrow FeO(OH) + O_2</math><br />
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Ferrater är starkare [[oxidationsmedel]] än till exempel [[permanganat]]er och kan oxidera [[ammoniak]] till [[kväve]].<br />
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[[Kategori:Ferrater| ]]<br />
[[Kategori:Oxoanjoner]]<br />
[[Kategori:Järnföreningar]]<br />
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[[en:Ferrate]]<br />
[[fa:فررات]]<br />
[[it:Ferrato]]<br />
[[hu:Ferrát]]<br />
[[nl:Ferraat]]<br />
[[ja:鉄酸塩]]<br />
[[ru:Ферраты]]</div>
Dan Olsson